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Intel SS4000-E User Guide - Page 186

RAID 1 - Disk Mirroring/Disk Duplexing, RAID 5 - Data Striping with Striped Parity,

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Levels of RAID RAID 1 - Disk Mirroring/Disk Duplexing In a RAID 1 configuration, all the data written to one disk is duplicated on the other disk. This offers greater data protection since if one disk fails, all your data is still intact on the other disk. However, using RAID 1 means only half your available disk space is used for data; the other half is used for a duplicate (mirror) of that data. You can use RAID 1 only if your storage system has only two disks. If the disks are not the same size, the smaller of the two disks is used for data, and the larger of the two disks is used as the mirror. If one disk fails, the other disk continues to make its data available. D1 D2 Disk 1 D1 D2 Disk 2 AF000243 Figure 39. RAID 1 - Disk Mirroring/Disk Duplexing RAID 5 - Data Striping with Striped Parity Like RAID 0, RAID 5 offers increased performance by distributing the data across multiple disks. But unlike RAID 0, RAID 5 also offers data protection. If your storage system has three disks of equal size, two thirds of each disk are used for data, and the remaining third contains the parity information needed to reconstruct either of the other two. In this way, if any of the three disks fails, it can be reconstructed when a new disk is installed in the storage system. If your storage system has four disks of equal size, three fourths of each disk are used for data, and the remaining fourth contains the parity information needed to reconstruct either of the other three. If any of the four disks fails, it can be reconstructed when a new disk is installed. You can use RAID 5 only if your storage system has at least three disks. If the disks are not the same size, the smallest of the disks determines how much disk space is available for data. For example, if one disk is 300 GB, one is 400 GB, and one is 500 GB, only 300 GB from each disk can be used. Two thirds of each disk (200 GB) is used for storage space, and the remaining third is used for parity information. As a result, only 600 GB of disk space would be available for data. 170 Intel® Entry Storage System SS4000-E User Guide

Section	Page
Safety Information	3
Important Safety Instructions	3
Wichtige Sicherheitshinweise	3
Consignes de sécurité	3
Instrucciones de seguridad importantes	3
Warnings	4
Preface	5
About this Manual	5
Manual Organization	5
Product Contents, Order Options, and Accessories	5
Additional Information and Software	6
1 Storage System Features	17
Key Features and Benefits	18
Front Panel	19
Rear Panel	21
System Requirements	22
Accessories and Spare Parts	23
2 Getting Started	25
Setting up the Storage System	26
Installing the Hard Disks	26
Attaching the Storage System to the Network	31
Powering Up the Storage System	32
Powering Down the Storage System	32
Initializing your Storage System	32
Installing the Console	33
Starting the Console	34
Initializing the Disks	36
Configuring Your Storage System	37
Accessing the Manager	41
Accessing the Manager Using the Console	42
Accessing the Manager Using a Web Browser	42
Logging in to the Manager	43
Navigating the Manager	44
Viewing Information About Your Storage System	46
Adding Users	48
Creating Shared Folders	51
Managing Shared Folders	52
Deleting a Shared Folder	53
Assigning Users to Shared Folders	54
3 Managing Your Storage System	55
Managing Users	56
Adding Users	57
Modifying Users	57
Removing Users	59
Working with Groups	59
Adding a Group	60
Changing the Group Membership	62
Removing a Group	63
Changing Authentication Mode	64
Modifying the Active Directory properties	68
Synchronizing the Storage System and Active Directory Server	70
Managing Shared Folders	70
Deleting a Shared Folder	71
Assigning Users to Shared Folders	72
Managing Backups	74
Changing the Recovery Password	75
Configuring Remote Boot	75
Deleting a Backup	76
Deleting a Client	77
Setting Up e-mail Alerts	78
Upgrading the Firmware	80
Disconnecting USB Devices	81
Changing the System Settings	82
Changing the Network Settings	84
Reconfiguring Your Storage System Disks	87
Expanding the Shared Storage	88
Reconfiguring the Disks	89
Viewing System Status Information	92
Logging Out of the Manager	93
Shutting Down the Storage System	93
4 Working with Shared Folders	95
Accessing Shared Folders	95
Microsoft Windows* Users	95
Using the Console	97
Linux* Users	100
Mac Users	100
Mac OS X	100
Other Mac Operating Systems	101
Accessing Shared Folders using FTP	101
Disconnecting from Shared Folders	102
Microsoft Windows* Users	102
Disconnecting Using My Computer/Windows Explorer	102
Disconnecting Using the Console	102
Linux* Users	103
Mac* Users	103
Mac OS X	103
Other Mac Operating Systems	103
5 Protecting Local Disks	105
Getting Started	106
System Requirements	106
Additional Requirements	107
Installing the Microsoft iSCSI Initiator*	107
Installing Intel® Client Backup and Recovery	108
Starting Intel® Client Backup and Recovery	111
Activating Your License	112
Activating Your License Without an Internet Connection	113
Replacing Your Existing License	114
Protecting Your Disks	114
Manually Backing up Your Disk	121
Stopping a Backup or Recovery in Progress	122
Changing the Backup Schedule	123
Receiving Event Notifications	124
Changing the Recovery Password	124
Enabling or Disabling Remote Boot	126
Enabling Remote Boot	127
Disabling Remote Boot	128
Recovering Data	128
Recovering Files or Folders	130
Recovering a Data Disk	132
Recovering a System Disk Using the Recovery CD	133
Recovering a System Disk While Booting Remotely	138
Prerequisites	138
Removing Protection	142
6 Adding or Replacing Hard Disks	143
Adding Hard Disks	143
Adding Hard Disks to a Linear or Normal RAID Configuration	144
Adding Hard Disks to a Degraded RAID Configuration	146
Removing Hard Disks or Responding to a Disk Failure	147
Responding to RAID Degradation	148
Responding to RAID Failure	149
Swapping Hard Disks	150
Transferring Hard Disks to a New Storage System	150
7 Hardware Installations and Upgrades	153
Before You Begin	153
Tools and Supplies Needed	153
System References	153
Removing or Installing the Enclosure Cover	153
Removing the Enclosure Cover	154
Installing the Enclosure Cover	155
Replacing or Installing a Hard Disk	156
Replacing Power Supply	161
Replacing System Fan	167
8 Troubleshooting	175
Viewing the System Log	175
Troubleshooting the Storage System	176
I Can’t Access the Manager.	176
I Forgot the Password for Logging in to the Manager.	176
Users Cannot Create Files in the Shared Folders.	177
The storage system is not distributing IP addresses.	178
The users cannot access the storage system using FTP.	178
A package size error appears when I upgrade the firmware	178
Troubleshooting Intel® Client Backup and Recovery	178
The disk that I want to protect isn’t listed.	178
The Status page indicates that the backup is offline.	179
A backup did not occur at its scheduled time.	180
I can’t change my backup schedule.	180
I forgot my recovery password.	180
Creating a Diagnostic File	181
Using Intel® Client Backup and Recovery	181
Using the Recovery CD	181
Resetting the Recovery Password in the Microsoft iSCSI Initiator*	182
9 Technical Specifications	183
Hardware Specification	183
Software Specification	184
A Levels of RAID	185
Linear	185
RAID 0 - Data Striping	185
RAID 1 - Disk Mirroring/Disk Duplexing	186
RAID 5 - Data Striping with Striped Parity	186
RAID 5 + Spare	187
RAID 10 - Combination of RAID 1 and RAID 0	188
B PXE Remote Boot	189
C Glossary	191
D Regulatory and Compliance Information	193
Product Regulatory Compliance	193
Intended Application	193
Product Safety Compliance	193
Product EMC Compliance - Class B Compliance	194
Certifications / Registrations / Declarations	194
Product Regulatory Compliance Markings	195
Electromagnetic Compatibility Notices	196
FCC Statement (USA)	196
ICES-003 (Canada)	196
Europe (CE Declaration of Conformity)	197
VCCI (Japan)	197
BSMI (Taiwan)	197
RRL (Korea)	197
End of Life / Product Recycling	198
Restriction of Hazardous Substances (RoHS) Compliance	198
E Warranty	199
Limited Warranty for Intel® Chassis Subassembly Products	199
Extent of Limited Warranty	199
Warranty Limitations and Exclusions	200
Limitations of Liability	200
How to Obtain Warranty Service	200
Telephone Support	201
Returning a Defective Product	201
F Getting Help	203
World Wide Web	203
Telephone	203
U.S. and Canada	203
Europe	203
In Asia-Pacific region	204
Japan	204
Latin America	204
G Installation/Assembly Safety Instructions	207
English	207
Deutsch	209
Français	212
Español	214
Italiano	216
H Safety Information	219
English	219
Server Safety Information	219
Safety Warnings and Cautions	219
Intended Application Uses	220
Site Selection	220
Equipment Handling Practices	220
Power and Electrical Warnings	220
Power Cord Warnings	221
System Access Warnings	221
Rack Mount Warnings	222
Electrostatic Discharge (ESD)	222
Other Hazards	223
Battery Replacement	223
Cooling and Airflow	223
Laser Peripherals or Devices	223
Deutsch	224
Sicherheitshinweise für den Server	224
Sicherheitshinweise und Vorsichtsmaßnahmen	224
Zielbenutzer der Anwendung	225
Standortauswahl	225
Handhabung von Geräten	225
Hinweis für Netzkabel	226
Warnhinweise für den Systemzugang	227
Elektrostatische Entladungen (ESD)	228
Andere Gefahren	229
Batterieaustausch	229
Kühlung und Luftstrom	229
Laser-Peripheriegeräte oder -Komponenten	229
Français	230
Consignes de sécurité sur le serveur	230
Sécurité: avertissements et mises en garde	230
Domaines d’utilisation prévus	231
Sélection d’un emplacement	231
Pratiques de manipulation de l’équipement	231
Avertissements sur le cordon d’alimentation	232
Décharges électrostatiques (ESD)	234
Autres risques	235
Remplacement de la pile	235
Refroidissement et ventilation	235
Périphériques laser	235
Español	236
Información de seguridad del servidor	236
Advertencias y precauciones sobre seguridad	236
Aplicaciones y usos previstos	237
Selección de la ubicación	237
Manipulación del equipo	237
Advertencias sobre el cable de alimentación	238
Advertencias el acceso al sistema	239
Descarga electrostática (ESD)	240
Sustitución de la batería	241
Enfriamiento y circulación de aire	241

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Levels of RAID

170

Intel

Entry Storage System SS4000-E User Guide

RAID 1 - Disk Mirroring/Disk Duplexing

In a RAID 1 configuration, all the data written to one disk is duplicated on the other disk.

This offers greater data protection since if one disk fails, all your data is still intact on the

other disk. However, using RAID 1 means only half your available disk space is used for

data; the other half is used for a duplicate (mirror) of that data.

You can use RAID 1 only if your storage system has only two disks. If the disks are not

the same size, the smaller of the two disks is used for data, and the larger of the two disks

is used as the mirror.

If one disk fails, the other disk continues to make its data available.

Figure 39.

RAID 1 - Disk Mirroring/Disk Duplexing

RAID 5 - Data Striping with Striped Parity

Like RAID 0, RAID 5 offers increased performance by distributing the data across

multiple disks. But unlike RAID 0, RAID 5 also offers data protection. If your storage

system has three disks of equal size, two thirds of each disk are used for data, and the

remaining third contains the parity information needed to reconstruct either of the other

two. In this way, if any of the three disks fails, it can be reconstructed when a new disk is

installed in the storage system.

If your storage system has four disks of equal size, three fourths of each disk are used for

data, and the remaining fourth contains the parity information needed to reconstruct either

of the other three. If any of the four disks fails, it can be reconstructed when a new disk is

installed.

You can use RAID 5 only if your storage system has at least three disks. If the disks are

not the same size, the smallest of the disks determines how much disk space is available

for data. For example, if one disk is 300 GB, one is 400 GB, and one is 500 GB, only 300

GB from each disk can be used. Two thirds of each disk (200 GB) is used for storage

space, and the remaining third is used for parity information. As a result, only 600 GB of

disk space would be available for data.

AF000243

Disk 2

Disk 1